Ventilated car-door



(No Model.)

No. 487,163. Patented Nov. 29, 1892.

' 1f ??fA gigi" UNITED STATES PATENT OFFICE.V

JOHN L. STAGG AND CHARLES W. FENN, OF CHICAGO, ILLINOIS, AND

CHARLES T. SCHOEN, OF ALLEGHENY, PENNSYLVANIA.

VENTILATED CAR-DOOR.

SPECIFICATION forming part of Letters Patent No. 487,163, dated November29, 1892. Application filed April 7, 1892. i Serial No. 428,224. (Nomodel.)

To all whom t may concern:

Be it known lthat we, JOHN L. STAGG and CHARLES W. FENN, residing atChicago, in the county of Cook, in the State of Illinois, and CHARLES T.SoHoEN, residing at Allegheny, in the county of Allegheny and State ofPennsylvania, citizens of the United States, have invented a certain newand useful Improvement in Ventilated Car-Doors, of which the followingis a full, clear, and exact description.

The object of this invention is to provide an economical and efficientVentilating-door principally for use in box or freight cars. In box-carsit is oftentimes necessary to close their openings tight against theadmission of air and at other times it is equally necessary to providefor a free circulation of air in them. For economical and other reasonsit is desirable to have as few openings in and additions to such andother cars as possible, and so we utilize the necessary doors forventilation as Well as security, and While we herein show and describeour invention as embodied in a door only, nevertheless We wish to beunderstood as not thereby restricting the use of its essential featuresand characteristics to doors, for it is obvious that the ventilators maybe applied as well in the sides and ends of cars and elsewhere and inotherobjects as in doors.

In the accompanying drawings, illustrating our invention, in the severalfigures of which like parts are similarly designated, Figure l isanelevation with one of the hooded plates broken away; and Figs. 2 and3, sections taken, respectively, in the planes of lines and y y 0f Fig.1.

We prefer to construct our door with stiles a, three rails b, andmullions c, so as to provide four panels; but of course we do not limitour invention to such a door; also, We prefer to unite the stiles andrails by jointbolts, as indicated by the dotted lines. In our inventionthe panels d are ventilators, which may be opened and closed atpleasure. These panels we prefer to construct of steel plate or otherwrought metal; but we prefer steelrplate because of its lightness,strength,

and stiffness. We use in each panel a plate e, fixed in between thestile, mullion, and rails adjacent thereto and having the inclined holesare formed by4 slitting the plate andpressing, punching, stamping, ordrawing up the hoods, and in order lto straighten and stiffen the plateafter such operation of forming the hooded openings we form a bead orrib m around its margin. A gravity-butt-on n is pivoted to the loweredge of the hooded plate. Normally the hooded plate uncovers all theopenings. When it is desired to cover the openings, the hooded orsliding plate is raised and its button dropping rests upon the loweredge of the fixed plate and so holds t-he said hooded plate closed.Other means than the gravity-button may be employed for holding up themovable or sliding plate. Each hooded plate is capable of independentoperation, and hence the Ventilation may be from the top or bottom or atboth points. The hoods are provided to exclude the suns rays, snow,sleet, and rain while freely admitting air. We have shown the fixedplate secured in rabbets in the doors by means of moldings o; but we donot limit our invention thereto. The sliding plate may be arranged toclose or open the fixed plate in normal position, and so, also, it maybe raised to open the ventilator or to close it, or it may be lowered toopen or close it.

1. A Ventilating-door having fixed perforated plates at top and bottomand sliding perforated plates applied to such fixed plates by means ofslots and pins and normally having their perforations in register,substantially as described.

2. A Ventilating-door having a series of panels, each composed of afixed perforated metal plate and a sliding plate applied thereto andsupported by it by means of slots and pins and having hooded openingsnormally registering with the openings in the fixed plate vand adaptedto be 'moved to close the openings in the fixed plate and to be held insuch closing position, substantially as described.

3. A ventilator having a fixed perforated metal plate and a slidingplate applied thereto and supported by it by means of slots and pins andhaving hooded perforations and adapted to be moved to open or close theperforations in the xed plates, substantially as described.

